continuous recording
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2021 ◽  
Vol 11 (24) ◽  
pp. 11719
Author(s):  
Stanislav Yankovsky ◽  
Anton Tolokol’nikov ◽  
Alexander Gorshkov ◽  
Albina Misyukova ◽  
Geniy Kuznetsov

In this work, we experimentally investigated the effect of widespread biomass (woodworking waste—pine sawdust) in the composition of mixed fuel, formed also using the widespread steam coals metalignitous (D) and lean (T), on the concentration of sulfur, nitrogen and carbon oxides in flue gases. Investigations of composite fuels with a mass of at least 5 g were carried out in a reactor with continuous recording of the composition of the flue gases formed during the thermal decomposition of the investigated fuels. Thermal decomposition of fuels was carried out in the temperature range from 293 K to 873 K. It was found that an increase in the proportion of wood components in mixed fuels based on two different coals from 10% to 50% leads to a significant decrease in the concentration of sulfur oxides from 11% to 95.8% relative to the concentration of the formation of sulfur oxides in a homogeneous coal, respectively. It was found that an increase in the proportion of the wood component in the mixture with grade D coal up to 50% leads to a significant increase in the content of calcium sulfates (45.1%) and aluminum (43.2%) in the blended fuel. The increase in the content of these salts in the ash of mixed fuels based on T coal and wood is 35.1% and 38.6%, respectively. The obtained research results allowed us to conclude that woodworking wastes are an effective addition to the coals of various deposits, which would help to reduce anthropogenic-induced gas emissions when they are co-combusting in the furnaces of power boilers.


2021 ◽  
Author(s):  
Jana Izvoltova ◽  
Libor Izvolt ◽  
Janka Sestakova

Complex diagnostics of railway lines involves techniques based on discrete and continual data acquisition. While discrete measurements belong to conventional methods, the modern continual ones use automated robotized instruments with continuous recording. Observations have become more time-efficient, but the processing epoch has become longer to evaluate a large number of data. Railway line diagnostics is realized by relative methods lead to determine relative track parameters as the track gauge, elevation, and track gradients and absolute, geodetic techniques determine directional and height ratios of the track, defined in a global coordinate and height system.


Author(s):  
Yuriy P. BORONENKO ◽  
◽  
Aleksandr V. TRET’YAKOV ◽  
Rustam V. RAKHIMOV ◽  
Mariya V. ZIMAKOVA ◽  
...  

Objective: To develop the method to monitor the technical condition of the railway track. Me-thods: A strain-gauge wheel pair is used for continuous recording of vertical and lateral interaction forces in a dynamic wheel–rail system. Results: Stability margin factors of a wagon relative to de-railment have been determined and the defective (prone to derailment) sections of a railway track have been identified with the exact identification of their location (GPS coordinates) on the map using navigation devices. Practical importance: The developed monitoring method makes it possi-ble to promptly re¬gister and eliminate railway track defects


2021 ◽  
Vol 19 (3) ◽  
pp. 581-590
Author(s):  
Xin Huo ◽  
◽  
Sutida Yaemklang ◽  
Pornnapa Pimmai ◽  
Pakanit Kupittayanant ◽  
...  

Our preliminary study investigated: 1) differences of general behaviors between stereotypic (male, n=2, ST) and non-stereotypic (male, n=2, NST) stabled horses 2) the different reactions to enrichment items (hay nets, bedding straw and yoga ball) between ST and NST horses. The frequency of general behaviors, stereotypic behaviors and the reactions to enrichment items were recorded. The results showed that there was a significantly different frequency of ingestion, locomotion, standing alert, investigation and social interactions between ST and NST horses during 24 hours of observation (P<0.05). The ST horses performed weaving and wind sucking. There were significant differences in reactions, such as sniffing, watching and rolling when using enrichment items (P<0.05). The frequency of sniffing was the highest when bedding straw was used. The horses displayed watching behaviors when using yoga ball (P <0.05) and rolling (P <0.05) when using bedding straw. The frequency of sniffing straw bedding in NST horses was greater than that of ST horses (P=0.006). The NST horses preferred watching the ball (P<0.001). Only ST horses performed rolling when provided with straw bedding. In conclusion, the differences in general behaviors between ST and NST horses were established. Different reactions to enrichment items also occurred between ST and NST horses. A more extensive study with a larger sample size and a continuous recording of behavior for a longer period is recommended.


2021 ◽  
Vol 3 (4) ◽  
pp. 33-45
Author(s):  
Casmin B. Alauya

This paper is a historical narrative study documenting two of the most ancient living Meranaw cultural heritage: kapanga-awl (weaving) and kapamalod (tie-dyeing). These century-old surviving crafts serve as a testament to a very long-standing contacts and trade relations between the Philippines and her neighboring countries such as India, China and the Asian countries, more particularly Indonesia whose Ikat (from an ancient Indonesian word mengikat which means to tie or bind) weaving style closely resembles the Meranaw balod technique in weaving. What links the Philippines with these countries and what finds the Meranaw more similar to the weaving tribes in Northern Luzon and Southern Mindanao are their weaving culture. Highlights of this paper include the origin of the balod technique in weaving, their ingenuity with regards to the use of natural and indigenous raw materials for weaving and some mythical performances, ceremonies, and ritual offerings associated with the balod craftsmanship. Significantly, the research aimed to enable the readers to appreciate and understand the said weaving cultural heritage. It addresses the issues of saving this cultural heritage; otherwise, weaving may suffer the fate of other Meranaw indigenous arts that have diminished and faded into oblivion. This paper recommends preserving such weaving cultural heritage through continuous recording or documenting, archiving, preserving them in their living form, and ensuring its transmission to the next generation.


Author(s):  
Christa Koenig ◽  
Roland A. Ammann ◽  
Claudia E. Kuehni ◽  
Jochen Roessler ◽  
Eva Brack

Abstract Purpose Pediatric patients with cancer are at high risk for severe infections. Infections can trigger changes of vital signs long before clinical symptoms arise. Continuous recording may detect such changes earlier than discrete measurements. We aimed to assess the feasibility of continuous recording of vital signs by a wearable device (WD) in pediatric patients undergoing chemotherapy for cancer. Methods In this prospective, observational single-center study, pediatric patients under chemotherapy wore the Everion® WD for 14 days. The predefined patient-specific goal was heart rate recorded in good quality during ≥18/24 h per day, on ≥7 consecutive days. The predefined criterion to claim feasibility was ≥15/20 patients fulfilling this patient-specific goal. Results Twenty patients were included (median age, 6 years; range, 2–16). Six patients aged 3–16 years fulfilled the patient-specific goal. Quality of heart rate recording was good during 3992 of 6576 (61%) hours studied and poor during 300 (5%) hours, and no data was recorded during 2284 (35%) hours. Eighteen of 20 participants indicated that this WD is acceptable to measure vital signs in children under chemotherapy. Conclusion The predefined feasibility criterion was not fulfilled. This was mainly due to important compliance problems and independent of the WD itself. However, continuous recording of vital signs was possible across a very wide age range in pediatric patients undergoing chemotherapy for cancer. We recommend to study feasibility in the Everion® again, plus in further WDs, applying measures to enhance compliance. Trial registration ClinicalTrials.gov (NCT04134429) on October 22, 2019.


2021 ◽  
Author(s):  
Christa Koenig ◽  
Roland A Ammann ◽  
Claudia E Kuehni ◽  
Jochen Roessler ◽  
Eva Brack

Abstract PurposePediatric patients with cancer are at high risk for severe infections. Infections can trigger changes of vital signs long before clinical symptoms arise. Continuous recording may detect such changes earlier than discrete measurements. We aimed to assess the feasibility of continuous recording of vital sings by a wearable device (WD) in pediatric patients undergoing chemotherapy for cancer.MethodsIn this prospective, observational single-center study pediatric patients undergoing chemotherapy for cancer wore the Everion® WD for 14 days.ResultsTwenty patients were included (median age, 6 years; range, 2-16). Six patients (predefined feasibility criterion, ≥15 patients) aged 3-16 years fulfilled the patient specific goal, defined as heart rate recorded with good quality during ≥18 hours/day on ≥7 consecutive days. The quality of heart rate recording was good during 3992 of 6576 (61%) hours studied, poor during 300 (5%) hours, and no data was recorded during 2284 (35%) hours. Eighteen of 20 participants indicated that this WD is acceptable to measure vital sings in children undergoing chemotherapy for cancer. ConclusionWe found that continuous recording of vital signs is feasible across a very wide age range in pediatric patients undergoing chemotherapy for cancer. In the configuration studied, however, the predefined feasibility criterion was not fulfilled. This was mainly due to important compliance problems and independent of the WD itself. These results will influence the design of future WD-studies including those aiming to identify patterns predicting fever or infection. This study was registered at ClinicalTrials.gov (NCT04134429) the 22th of October, 2019.


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